chore(style): codebase em-dash sweep + minor layout polish

Replaces every em-dash and en-dash with regular ASCII hyphens
across comments, JSX strings, and dev-facing logs. Mostly cosmetic
but stops the inconsistent mix that crept in over the last few
months (some files used em-dashes in comments, others didn't,
some used both).

Bundles two small dashboard-layout tweaks that touch a couple of
already-modified files:
- (dashboard)/layout.tsx main padding goes from p-6 to pt-3 px-6
  pb-6 so page content sits closer to the topbar.
- Sidebar now receives the ports list it needs for the footer
  port switcher.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

src/components/interests/urgency.ts

@@ -2,7 +2,7 @@
  * Sales-triage urgency badges for interest list rows + cards.
  *
  * Derived purely from the dates we already return on the row, so this is a
- * pure function — no DB hits, no extra fetch. Mirrors the logic the
+ * pure function - no DB hits, no extra fetch. Mirrors the logic the
  * server-side alert-rules engine uses, but for at-a-glance rendering on
  * the list itself.
  */
@@ -47,7 +47,7 @@ export function computeUrgencyBadges(row: InterestUrgencyInput): UrgencyBadge[]
 
   const badges: UrgencyBadge[] = [];
 
-  // Silent in mid-funnel stages — most actionable.
+  // Silent in mid-funnel stages - most actionable.
   if (ACTIVE_MID_FUNNEL_STAGES.has(row.pipelineStage)) {
     const lastTouchIso = row.dateLastContact ?? row.updatedAt ?? null;
     const days = daysSince(lastTouchIso);